How long on puppy food before switching?

by Helen
(Visalia,CA, USA)

Hi Everyone! I am getting a Boston Terrier puppy in 1 week. I picked her out from the litter when she was only 1 week old because the breeder sells his babies so fast. It's been a long wait and I am so excited. I had a BT as a kid so I am aware of what is ahead, and I am trying to do some reading and get all of my ducks in a row before I bring her home. I also have a 4 year old, 5 lb Chihuahua who currently eats Eukanuba small breed dog food freely. At first I thought that they could both just eat puppy food, but after doing some research I think that I should feed them separate because of all of the extra added nutrition in puppy food. So now that I am going to feed them separate I was hoping someone could help me by giving any advice they may have...like how long will she need to be on puppy food? I think feeding my Chihuahua freely will have to stop because I don't want anything to confuse my new puppy. Any advice would be much appreciated!!! Thanks!!! :)